As Russia was dropping missiles on Ukraine by the dozens in mid-December of last year, the Ukrainian parliament adopted a new Law on National Minorities, in order to comply with the EU's accession criteria of protecting national minorities. What this new law does, however, is exactly the opposite: Kyiv strips from its ethnic minorities rights which they had previously enjoyed.
Ethnic minorities, for instance Poles, are not guaranteed under the new legislation to freely use their ethnic-national symbols, even though they are fighting on the front lines, and Poland provides the biggest possible support to Ukraine. They are provided less time to air Polish-language media content and can barely use their mother tongue in schools or outside their homes, even though they were free to do so since the independence of Ukraine.
https://www.newsweek.com/suppression-suppressed-ukraines-restrictions-minority-rights-opinion-1779946